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olga2289 [7]
3 years ago
12

PLEASE HELP ILL GIVE BRAINLIEST !!! 100 POINTS !! NO FAKE ANSWERS !

Mathematics
2 answers:
Sonbull [250]3 years ago
6 0

Answer:

20.

Step-by-step explanation:

Given, complex number is 10+5i .

We need to find sum of the given complex number and its conjugate. The conjugate of 10+5i is 10-5i. Therefore, the sum will be 10+5i+10−5i=20.

Vsevolod [243]3 years ago
4 0

Answer:

20

Step-by-step explanation:

complex conjugate of 10+5i = 10-5i

10+5i + 10-5i = 20

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Suppose that Ayumi rolls a pair of fair six-sided dice. Let AAA be the event that the first die lands on 222 and BBB be the even
balu736 [363]

Answer:

1/6

1/6

1/36

Events A and B are independent

Step-by-step explanation:

Suppose:

A = event that first die lands on 2

B = event that second die lands on 2

Sample space:

Die 1 = 1,2,3,4,5,6

Die 2 = 1,2,3,4,5,6

Sample space of both die combined is attached below

Probability = (total number of required outcomes / total number of possible outcomes)

Probability that first die lands on 2:

P(A) = 1/6

Probability that second die lands on 2:

P(B) = 1/6

Probability of A and B:

P(A and B) = 1/6 × 1/6 = 1/36

Evebts A and B are independent because, the outcome of one event does not affect the occurrence of the other event.

4 0
4 years ago
Please help. I keep getting this problem wrong . I need help please . I’ll mark you as brainliest if correct . Only answer if yo
Travka [436]

Answer:

The real number 'a' = 32

The real number 'b' = 0

Step-by-step explanation:

Product of a number of a number and its conjugate = a + bi

The number is = -4 + 4i

Conjugate of this number is = -4 - 4i

Product of the number and it's conjugate

= (-4 + 4i)(-4 - 4i)

= -4(-4 - 4i) + 4i(-4 - 4i) [By distributive property]

= 16 + 16i - 16i - 16i²

= 16 - 16(-1)

= 16 + 16

= 32

a + bi = 32 + (0)i

By comparing both the sides,

a = 32

b = 0

4 0
3 years ago
Point A is located at (−2, 2), and point M is located at (1, 0). If point M is the midpoint of segment AB, find the location of
Nimfa-mama [501]

Answer:

(4, -2)

Step-by-step explanation:

Xb = 1 + (1-(-2)) = 1+3 = 4

Yb = 0 + (0-2) = 0-2 = -2

point B (4, -2)

7 0
3 years ago
Matthew scored a total of 168 points in basketball this season. He scored 147 of those in the regular season, and and the rest w
MaRussiya [10]

Answer:

12.5%

Step-by-step explanation:

Step1. Determine the points Matthew had during playoff by subtracting points made during regular season from total points in season.

   168 points this season

-   <u>147 points regular season </u>

    21 points scored in playoff

Step 2. Get the percentage, by dividing playoff points over total points in season

21 ÷ 168 = 0.125

Step 3. Multiply it by 100 to get the percentage equivalent from decimal.

0.125 x 100% = 12.5%

7 0
3 years ago
Complete the statement to describe the expression (a+b+c)(d+e+f)
kherson [118]

Answer:

The given expression consists of 2 factors, and each factor contains 3 terms.

Step-by-step explanation:

Given the expression (a+b+c)(d+e+f)

Factors are parts of  expression that are connected by multiplication. we are multiplying  (a+b+c) and (d+e+f) so we said  (a+b+c) and (d+e+f) are factors of the expression.

Hence, there are 2 factors in given expression.

A mathematical expression contains numbers, variables and operators joined by addition, subtraction, multiplication, and division. The parts of the expression that are connected with addition and subtraction are known as terms.

In each factor (a+b+c) and (d+e+f) three terms are connected by addition. Hence, there are 3 terms in both the factors.

7 0
3 years ago
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